[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Xen-devel] [PATCH] Fixing ATS enabling for device assignment



Currently, Xen only enables ATS in Xen booting. When a ATS capable device is 
assigned to guest, ATS is actually not enabled because FLR before assignment 
causes it to be disabled. Thus ATS cannot be used in guest. This patch enables 
ATS in domain_context_mapping. This ensures ATS is enabled in assignment 
because FLR is earlier than domain_context_mapping call. Therefore ATS can be 
used in guest. This patch also implements disable_ats_device to disable ATS 
when the device is deassigned from a domain.

Signed-off-by: Weidong Han <weidong.han@xxxxxxxxx>

Attachment: ats-fix.patch
Description: ats-fix.patch

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.